| abstract |
The present invention provides a transparent sheet-like cleansing agent obtained by preparing a composition that contains: (a) a water-soluble high molecular weight compound having a film forming ability; (b) an alkali salt of a fatty acid; and (c) a compound expressed by General Formula (I) below,n n(where R is a C 4 -C 34 alkyl group or C 4 -C 34 alkenyl group, at least one of X 1 and X 2 is -CH 2 COOM and the other is a hydrogen atom, where M is an alkali metal, an alkaline-earth metal, ammonium, a lower alkanolamine cation, a lower alkylamine cation, or a basic amino acid cation), and uniformly mixing and dissolving (a), (b), and (c) to prepare an undiluted solution in which a ratio of expansion (volume after mixing and dissolution / volume before mixing and dissolution) caused by bubbles generated during the mixing and dissolution is not greater than 1.6, and performing film-formation from the undiluted solution. n According to the present invention, it is possible to provide a transparent sheet-like cleansing agent that is excellent in transparency, can be formed thin, has good solubility, is excellent in foaming properties, and leaves no residual substance. |